Total to say ,the tradable emission permits is a kind of new environment manage means, full exertive market function, ease the information dissymmetry phenomenon in environment management effectively,and have obvious cost efficiency advantage.

• 总的来说,排污权交易作为一种新的环境治理手段,充分发挥市场作用,有效减轻环境治理中的信息不对称现象,具有明显的成本效率优势。